What is the force between moving charges?

[j88k]

Homework Statement

http://img207.imageshack.us/img207/4245/picture2jwi.png

Homework Equations

see picture

The Attempt at a Solution

I don't know what is going wrong with part B and I'm running out of attempts! Please help me with that and part C as well.

Thanks

 

[LowlyPion]

Homework Statement

Homework Equations

The Attempt at a Solution

I don't know what is going wrong with part B and I'm running out of attempts! Please help me with that and part C as well.

Thanks

F = q2v X B1 = q2v *μ_o*q1v/(4π*2d²)

Your distance squared is 2d² isn't it?

 

[LowlyPion]

For part C) consider that

ε_oμ_o = 1/c²

 

[j88k]

didn't get it.. one more attempt left..

http://img17.imageshack.us/img17/3769/picture2zjr.png




and the answer for part C would be: The magnitude of the electric force is greater than the magnitude of the magnetic force. ?

 

[j88k]

anyone?

 

[LowlyPion]

I think the problem is that the second charge is moving at an angle to the field generated by the other charge.

I think the F then is a factor of √2/2 off. (The value of sinθ that v is relative to the B field.)